January 3 and 17, February 6 and 21, March 5 and 19, April 2 and 16, May 7 and 21, June 4 and 18, July 2 and 16, August 6 and 20, September 4 and 17, October 1 and 15, November 5 and 19, and December 3 & 17, 2012.